2019 GMC Terrain Speaker Sizes

The 2019 GMC Terrain speaker size chart details factory audio system specifications across multiple locations. Information covers replacement and upgrade options for speakers in the a-pillar, dashboard, front door panel, rear door panel, and rear side panel positions. Aftermarket specifications enable owners to match components when replacing factory speakers.

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Speaker Details by Location
Location Size Type Notes
A-Pillar 1 Tweeter
  • Requires panel disassembly
  • Professional installation recommended
  • Low replacement priority
  • Replacement difficulty: high
Dashboard 3.5 Full-Range
  • Requires panel disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Front Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low
Rear Side Panel 8 Woofer
  • Requires trim removal
  • Medium replacement priority
  • Replacement difficulty: medium

2019 GMC Terrain Speaker Replacement Summary

5 total positions
2 easy to replace
1 high priority
1 professional only

Replacement difficulty:

Low: 2 Medium: 2 High: 1

Replacement priority:

High: 1 Medium: 2 Low: 2

Additional Notes

  • The front door panel and rear door panel locations in the 2019 GMC Terrain share the same 6.5 inch sizing, which may suggest that a single speaker model could potentially serve both positions if the compatible types align with the intended audio setup.
  • The A-pillar position is limited to a 1 inch tweeter type, which typically handles high-frequency reproduction only, making it dependent on other locations to cover the mid and low frequency ranges.
  • The dashboard position accommodates a 3.5 inch full-range driver, which could attempt to handle the entire audible frequency spectrum on its own, though its relatively small size may limit low-frequency output compared to larger drivers in other positions.
  • The rear side panel holds the largest driver at 8 inches and is designated for woofer use, suggesting it may be oriented toward low-frequency reinforcement rather than full-range audio coverage.
  • The front door panel position, compatible with midbass or full-range types at 6.5 inch, could be considered a higher priority for replacement given its placement closer to the primary listening area and its relatively larger size compared to the dashboard location.
  • With tweeter, full-range, midbass, and woofer positions spread across five locations, the speaker layout appears to allow for a somewhat layered frequency distribution across the cabin.